The graph below includes information on the average time to fixation of an allele (in generations) as a function of population size.  The three different curves represent different starting allele frequencies.  Which of the following statements correctly describes patterns depicted in the graph below? I. As population size increases, it takes fewer generations for alleles to reach fixation II. As starting allele frequency increases, it takes fewer generations for alleles to reach fixation III. Small populations will lose alleles more rapidly than large populations. IV. Even if starting allele frequency is low, fixation is possible - it just happens slowly.    Only III is a correct description   Only II is a correct description   II, III, & IV are correct descriptions   Both II & III are correct descriptions   Both I & II are correct descriptions   All four statements (I, II, III & IV) are correct descriptions   asap please

Human Anatomy & Physiology (11th Edition)
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ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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The graph below includes information on the average time to fixation of an allele (in generations) as a function of population size.  The three different curves represent different starting allele frequencies. 

Which of the following statements correctly describes patterns depicted in the graph below?

I. As population size increases, it takes fewer generations for alleles to reach fixation

II. As starting allele frequency increases, it takes fewer generations for alleles to reach fixation

III. Small populations will lose alleles more rapidly than large populations.

IV. Even if starting allele frequency is low, fixation is possible - it just happens slowly. 

 

Only III is a correct description

 

Only II is a correct description

 

II, III, & IV are correct descriptions

 

Both II & III are correct descriptions

 

Both I & II are correct descriptions

 

All four statements (I, II, III & IV) are correct descriptions 

 asap please 

Average time to fixation
(generations)
1200
1000
800
600
400
200
0
200
0.1
400
600
Population size (N)
0.5
0.9
800
1000
Transcribed Image Text:Average time to fixation (generations) 1200 1000 800 600 400 200 0 200 0.1 400 600 Population size (N) 0.5 0.9 800 1000
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